Quick cleanup of oxidation

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by GasSavings, Jul 4, 2025 at 11:00 PM.

  1. GasSavings

    GasSavings New Member

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    How do you guys do a quick half hour cleanup under this Prius hood? Mostly for aluminum oxidation? I’m sure you know what I’m talking about but I attached a pic to show you how bad it is.
     

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  2. GasSavings

    GasSavings New Member

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    I started cleaning with some white vinegar and baking soda, and it’s definitely looking a bit better not to mention all the parts around it cleaning all the dust and dirt off them is starting to improve the overall appearance.

    I’d really like to spray a degreaser Under here and power wash it off, but I’m sure you guys will say it would be a bad idea!

    So the inverter is starting to look better With just 10 minutes of TLC, but I’ll keep going. :)
     
  3. Mendel Leisk

    Mendel Leisk MMX GEN III

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    Yes, a REALLY bad idea.

    Toronto area, just for giggles I’d try (safely) raising the rear, removing some of the plastic panels (you’ll likely snap a few bolt heads), the rear wheels, and see how the rear suspension and body’s faring. Another time, repeat for the front.

    what’s worked for me is a lot of labour-intensive, area-by-area accessing, rough cleaning followed by brushed-on boiled linseed oil.

    what’s the miles btw?
     
    #3 Mendel Leisk, Jul 5, 2025 at 9:21 AM
    Last edited: Jul 5, 2025 at 9:31 AM
  4. Mendel Leisk

    Mendel Leisk MMX GEN III

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    I would Google this:

    will white vinegar and baking soda react with aluminum

    Addendum: just judging from the condition showing in your pic, I would fugedabout the engine bay, that ship has long since sailed. Concentrate on the serious stuff, suspension/body rust, especially the rear, where all the road salt gets kicked up.

    Again, pressure washing the engine bay can cause LOTS of (expensive) problems. AC compressor failure (thanks to it's 12 volt connector that could double as a rain gauge) is common.

    Here's ours, a pic while I was doing a voltage check this morning:

    IMG_1152.jpeg

    You're never going to restores yours once it's set in like that. The most I'd do is a bit of brushing, then hit it with comressed-air. Even a leaf blower or shop vac on blow can do this too, sans compressor.
     
    #4 Mendel Leisk, Jul 5, 2025 at 9:35 AM
    Last edited: Jul 5, 2025 at 12:06 PM